the Method of definition of co-ordinates of a source WITH means of a mobile instrument platform
Now we will observe a method of definition of co-ordinates of a source WITH by means of the mobile gas analyser presented in given work. On fig. 4.22 the circuit design of measurement of a rule of a source is shown WITH.
As it has been shown earlier, MPP after initialization flies up on some altitude and further it is propelled on a round with radius R which magnitude is experimentally found in the previous paragraph. Optimum radius R=5м is accepted. After a finding of the maximum gradient of concentration there is a traffic on a straight line towards concentration increase. Thus, the mechanical trajectory of the mobile gas analyser represents a set of rounds and intercepts. Traffic process comes to the end after on a round concentration WITH at traffic on a round practically does not change. That is the source WITH is in a round and its rule is defined with a margin error equal to radius of this round R.
Drawing 4.22. The circuit design of definition of co-ordinates of a source of pollution by means of one mobile gas analyser.
The given method allows by means of one gas analyser installed on a mobile platform to define co-ordinate of a source WITH. In the capacity of gauges of distances, there where it is is possible, it is offered to use mobile GPS. The rationed permissible error of the gauges applied in the given method should be observed as a ranging lapse (a site of the gas analyser) and concentration WITH.
Thus, in the capacity of criterion of efficiency of a method we will accept the figure square in which garantirovanno the source of pollution places. Comparing stationary methods of definition of co-ordinates of a source of ignition with a mobile instrument platform, it is possible to make
The leading-out, that application of MINES repeatedly raises accuracy of position finding of a source of pollution.
1) For one stationary device has the square a circle;
2) For two stationary devices the square of the figure formed by intersection of two rounds S = S1 + S2.
Here 6 ’ ι - radius of the first round; R2 - radius of the second round; With - distance centre to centre rounds.
3) For one mobile device has the circle square
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4.7.2
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